<hash>.worker.js returns Error 404

[aleyan]

Before you start - checklist

• I have read documentation in README
• I have checked sample and test suites to see real life basic implementation
• I have checked if this question is not already asked (already asked, but not exactly like mine )

What are you trying to achieve? Please describe.

Trying to use react-pdf with importing via
import { Document, Page } from 'react-pdf/dist/entry.webpack';
Get an error
GET http://localhost:9000/rewritten/deep/route/91d10c18b9b34c233fe3.worker.js 404 (not found)
when the react-router set url is at http://localhost:9000/rewritten/deep/route/
The 91d10c18b9b34c233fe3.worker.js is available at http://localhost:9000/static/myapp/91d10c18b9b34c233fe3.worker.js
/static/myapp/vendors~pdfjsWorker.main.js also exists. The react app itself is at /static/myapp/main.js.

Describe solutions you've tried

I have tried setting:

pdfjs.GlobalWorkerOptions.workerSrc = '/static/myapp/vendors~pdfjsWorker.main.js';
``` which results in one successful load followed by 404 when trying to get `http://localhost:9000/rewritten/deep/route/vendors~pdfjsWorker.main.js`

**Additional information**

```import { pdfjs } from 'react-pdf';
pdfjs.GlobalWorkerOptions.workerSrc = `//cdnjs.cloudflare.com/ajax/libs/pdf.js/${pdfjs.version}/pdf.worker.js`; ```
Works for me, but I want to not rely on the one on the cdn if possible.

**Environment**

 - Browser (if applicable) Chrome 73:
 - React-PDF version  4.0.5:
 - React version 16.5.2:
 - Webpack version 4.4.19:
 - React Router 5.0.0

[wojtekmaj]

Duplicate of #97

[wojtekmaj]

Please keep discussions going in #97 instead.